root / mainbox / tool.c @ 75cef49f
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1 | 7bdb98c5 | Tom Mullins | #include "tool.h" |
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2 | 15fa09f7 | Tom Mullins | #include "query.h" |
3 | 75cef49f | Tom Mullins | #include "event.h" |
4 | 7bdb98c5 | Tom Mullins | #include "tooltron_mb.h" |
5 | #include <modbus.h> |
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6 | #include <stdio.h> |
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7 | #include <errno.h> |
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8 | |||
9 | modbus_t *ctx; |
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10 | |||
11 | int tool_init_mb(const char *device) { |
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12 | 14688426 | Tom Mullins | struct timeval timeout;
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13 | |||
14 | 7bdb98c5 | Tom Mullins | ctx = modbus_new_rtu(device, MB_BAUD, 'N', 8, 1); |
15 | if (ctx == NULL) { |
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16 | fprintf(stderr, "modbus_new_rtu: %s\n", modbus_strerror(errno));
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17 | return 1; |
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18 | } |
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19 | |||
20 | if (modbus_connect(ctx) == -1) { |
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21 | fprintf(stderr, "modbus_connect: %s\n", modbus_strerror(errno));
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22 | modbus_free(ctx); |
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23 | return 1; |
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24 | } |
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25 | |||
26 | 14688426 | Tom Mullins | modbus_get_response_timeout(ctx, &timeout); |
27 | printf("Response timeout is %lus %luus\n", timeout.tv_sec, timeout.tv_usec);
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28 | |||
29 | 7bdb98c5 | Tom Mullins | return 0; |
30 | } |
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31 | |||
32 | void tool_close_mb() {
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33 | modbus_close(ctx); |
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34 | modbus_free(ctx); |
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35 | } |
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36 | |||
37 | static void tool_write_coil(int addr, int bit) { |
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38 | if (modbus_write_bit(ctx, addr, bit) == -1) { |
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39 | fprintf(stderr, "modbus_write_bit: %s\n", modbus_strerror(errno));
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40 | } |
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41 | } |
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42 | |||
43 | static void tool_init(struct tool_t *tool) { |
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44 | // TODO write current limit values
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45 | tool_write_coil(MB_COIL_INIT, 1);
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46 | tool->state = TS_OFF; |
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47 | } |
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48 | |||
49 | 3811693d | Tom Mullins | static void tool_read_user(struct tool_t *tool) { |
50 | 7bdb98c5 | Tom Mullins | unsigned short serno[2]; |
51 | 14688426 | Tom Mullins | if (modbus_read_input_registers(ctx, MB_INP_SERNOL, 2, serno) == -1) { |
52 | 7bdb98c5 | Tom Mullins | fprintf(stderr, "modbus_read_registers: %s\n", modbus_strerror(errno));
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53 | tool->user = 0;
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54 | } else {
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55 | tool->user = MODBUS_GET_INT32_FROM_INT16(serno, 0);
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56 | } |
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57 | } |
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58 | |||
59 | static void tool_grant_access(struct tool_t *tool) { |
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60 | 15fa09f7 | Tom Mullins | printf("Granting access to %08x on %s (%d)\n", tool->user, tool->name,
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61 | tool->address); |
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62 | 7bdb98c5 | Tom Mullins | tool_write_coil(MB_COIL_EN, 1);
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63 | dc472500 | Tom Mullins | tool->state = TS_ON; |
64 | 75cef49f | Tom Mullins | tool->event = event_alloc(); |
65 | tool->event->user = tool->user; |
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66 | tool->event->tool_id = tool->address; |
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67 | tool->event->tstart = time(NULL);
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68 | 7bdb98c5 | Tom Mullins | } |
69 | |||
70 | static void tool_deny_access(struct tool_t *tool) { |
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71 | 15fa09f7 | Tom Mullins | printf("Denying access to %08x on %s (%d)\n", tool->user, tool->name,
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72 | tool->address); |
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73 | 7bdb98c5 | Tom Mullins | tool_write_coil(MB_COIL_EN, 0);
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74 | dc472500 | Tom Mullins | tool->state = TS_OFF; |
75 | 7bdb98c5 | Tom Mullins | } |
76 | |||
77 | 75cef49f | Tom Mullins | static void tool_off(struct tool_t *tool) { |
78 | tool->state = TS_OFF; |
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79 | tool->event->tend = time(NULL);
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80 | event_q_push(tool->event); |
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81 | tool->event = NULL;
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82 | } |
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83 | |||
84 | 7bdb98c5 | Tom Mullins | void tool_request_disable(struct tool_t *tool) { |
85 | 15fa09f7 | Tom Mullins | printf("Requesting disable on %s (%d)\n", tool->name, tool->address);
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86 | 7bdb98c5 | Tom Mullins | tool_write_coil(MB_COIL_REQ_DIS, 1);
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87 | dc472500 | Tom Mullins | tool->state = TS_REQ_DIS; |
88 | 7bdb98c5 | Tom Mullins | } |
89 | |||
90 | void tool_poll(struct tool_t *tool) { |
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91 | unsigned char status[N_COILS]; |
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92 | |||
93 | 14688426 | Tom Mullins | if (modbus_set_slave(ctx, tool->address) == -1) { |
94 | 7bdb98c5 | Tom Mullins | fprintf(stderr, "modbus_set_slave: %s\n", modbus_strerror(errno));
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95 | } |
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96 | |||
97 | 15fa09f7 | Tom Mullins | /* If we can't read from the tool, we only want this error message to print
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98 | * once, thus tool->connected */
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99 | 7bdb98c5 | Tom Mullins | if (modbus_read_bits(ctx, 0, N_COILS, status) == -1) { |
100 | 15fa09f7 | Tom Mullins | if (tool->connected) {
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101 | fprintf(stderr, "Cannot connect to %s (%d): %s\n", tool->name,
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102 | tool->address, modbus_strerror(errno)); |
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103 | tool->connected = 0;
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104 | } |
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105 | 7bdb98c5 | Tom Mullins | return;
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106 | 15fa09f7 | Tom Mullins | } else if (!tool->connected) { |
107 | fprintf(stderr, "Reconnected to %s (%d)\n", tool->name, tool->address);
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108 | tool->connected = 1;
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109 | 7bdb98c5 | Tom Mullins | } |
110 | |||
111 | 15fa09f7 | Tom Mullins | /*uint16_t current;
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112 | if (modbus_read_input_registers(ctx, MB_INP_CURRENT, 1, ¤t) == -1) {
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113 | fprintf(stderr, "modbus_read_registers: %s\n", modbus_strerror(errno));
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114 | } else {
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115 | printf("Current: %d\n", current);
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116 | }*/
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117 | |||
118 | 1b054655 | Tom Mullins | /*printf("new:%d en:%d req_dis:%d init:%d\n", status[MB_COIL_NEW],
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119 | status[MB_COIL_EN], status[MB_COIL_REQ_DIS], status[MB_COIL_INIT]);*/
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120 | dc472500 | Tom Mullins | |
121 | 7bdb98c5 | Tom Mullins | if (!status[MB_COIL_INIT]) {
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122 | tool->state = TS_INIT; |
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123 | } |
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124 | |||
125 | switch (tool->state) {
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126 | |||
127 | case TS_INIT:
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128 | tool_init(tool); |
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129 | break;
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130 | |||
131 | case TS_OFF:
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132 | if (status[MB_COIL_NEW]) {
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133 | 3811693d | Tom Mullins | tool_read_user(tool); |
134 | 15fa09f7 | Tom Mullins | if (query_user_permission(tool->address, tool->user)) {
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135 | 7bdb98c5 | Tom Mullins | tool_grant_access(tool); |
136 | 1b054655 | Tom Mullins | } else {
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137 | 7bdb98c5 | Tom Mullins | tool_deny_access(tool); |
138 | 1b054655 | Tom Mullins | } |
139 | 7bdb98c5 | Tom Mullins | } |
140 | break;
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141 | |||
142 | case TS_ON:
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143 | if (!status[MB_COIL_EN]) {
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144 | 15fa09f7 | Tom Mullins | printf("Tool %s (%d) is off\n", tool->name, tool->address);
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145 | 75cef49f | Tom Mullins | tool_off(tool); |
146 | 7bdb98c5 | Tom Mullins | } |
147 | break;
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148 | |||
149 | case TS_REQ_DIS:
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150 | if (!status[MB_COIL_EN]) {
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151 | 15fa09f7 | Tom Mullins | printf("Tool %s (%d) is off after requested disable\n", tool->name,
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152 | tool->address); |
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153 | 75cef49f | Tom Mullins | tool_off(tool); |
154 | 7bdb98c5 | Tom Mullins | } |
155 | break;
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156 | |||
157 | } |
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158 | |||
159 | } |